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Due to its relevance in intelligent transportation systems, anomaly detection in traffic videos has recently received much interest. It remains a difficult problem due to a variety of factors influencing the video quality of a real-time…

Computer Vision and Pattern Recognition · Computer Science 2021-04-21 Keval Doshi , Yasin Yilmaz

Autoencoder and its variants have been widely applicated in anomaly detection.The previous work memory-augmented deep autoencoder proposed memorizing normality to detect anomaly, however it neglects the feature discrepancy between different…

Computer Vision and Pattern Recognition · Computer Science 2020-12-22 Yifei Yang , Shibing Xiang , Ruixiang Zhang

Human Action Anomaly Detection (HAAD) aims to identify anomalous actions given only normal action data during training. Existing methods typically follow a one-model-per-category paradigm, requiring separate training for each action…

Computer Vision and Pattern Recognition · Computer Science 2025-08-26 Koichiro Kamide , Shunsuke Sakai , Shun Maeda , Chunzhi Gu , Chao Zhang

Few-shot multispectral object detection (FSMOD) addresses the challenge of detecting objects across visible and thermal modalities with minimal annotated data. In this paper, we explore this complex task and introduce a framework named…

Computer Vision and Pattern Recognition · Computer Science 2025-09-26 Manuel Nkegoum , Minh-Tan Pham , Élisa Fromont , Bruno Avignon , Sébastien Lefèvre

Recently few-shot object detection is widely adopted to deal with data-limited situations. While most previous works merely focus on the performance on few-shot categories, we claim that detecting all classes is crucial as test samples may…

Computer Vision and Pattern Recognition · Computer Science 2021-05-21 Zhibo Fan , Yuchen Ma , Zeming Li , Jian Sun

Few-shot multi-class industrial anomaly detection identifies diverse defects across multiple categories using a single unified model and limited normal samples. Although vision-language models offer strong generalization, modeling multiple…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Runzhi Deng , Yundi Hu , Xinshuang Zhang , Zhao Wang , Xixi Liu , Wang-Zhou Dai , Caifeng Shan , Fang Zhao

Detecting anomalies within point clouds is crucial for various industrial applications, but traditional unsupervised methods face challenges due to data acquisition costs, early-stage production constraints, and limited generalization…

Computer Vision and Pattern Recognition · Computer Science 2024-09-23 Yuqi Cheng , Yunkang Cao , Guoyang Xie , Zhichao Lu , Weiming Shen

Visual defect assessment is a form of anomaly detection. This is very relevant in finding faults such as cracks and markings in various surface inspection tasks like pavement and automotive parts. The task involves detection of…

Computer Vision and Pattern Recognition · Computer Science 2019-05-31 Manpreet Singh Minhas , John Zelek

Learning to recognize novel visual categories from a few examples is a challenging task for machines in real-world industrial applications. In contrast, humans have the ability to discriminate even similar objects with little supervision.…

Computer Vision and Pattern Recognition · Computer Science 2020-06-02 Xin Sun , Hongwei Xv , Junyu Dong , Qiong Li , Changrui Chen

Low-shot learning indicates the ability to recognize unseen objects based on very limited labeled training samples, which simulates human visual intelligence. According to this concept, we propose a multi-level similarity model (MLSM) to…

Computer Vision and Pattern Recognition · Computer Science 2019-12-16 Hongwei Xv , Xin Sun , Junyu Dong , Shu Zhang , Qiong Li

Detecting objects and estimating their viewpoints in images are key tasks of 3D scene understanding. Recent approaches have achieved excellent results on very large benchmarks for object detection and viewpoint estimation. However,…

Computer Vision and Pattern Recognition · Computer Science 2022-10-13 Yang Xiao , Vincent Lepetit , Renaud Marlet

The collection and detection of video anomaly data has long been a challenging problem due to its rare occurrence and spatio-temporal scarcity. Existing video anomaly detection (VAD) methods under perform in open-world scenarios. Key…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Zunkai Dai , Ke Li , Jiajia Liu , Jie Yang , Yuanyuan Qiao

The paper explores the industrial multimodal Anomaly Detection (AD) task, which exploits point clouds and RGB images to localize anomalies. We introduce a novel light and fast framework that learns to map features from one modality to the…

Computer Vision and Pattern Recognition · Computer Science 2024-07-09 Alex Costanzino , Pierluigi Zama Ramirez , Giuseppe Lisanti , Luigi Di Stefano

3D anomaly detection and localization is of great significance for industrial inspection. Prior 3D anomaly detection and localization methods focus on the setting that the testing data share the same category as the training data which is…

Computer Vision and Pattern Recognition · Computer Science 2024-12-06 Yizhou Wang , Kuan-Chuan Peng , Yun Fu

In industrial anomaly detection (IAD), accurately identifying defects amidst diverse anomalies and under varying imaging conditions remains a significant challenge. Traditional approaches often struggle with high false-positive rates,…

Computer Vision and Pattern Recognition · Computer Science 2025-03-04 Yurui Pan , Lidong Wang , Yuchao Chen , Wenbing Zhu , Bo Peng , Mingmin Chi

Zero-shot anomaly detection (ZSAD) often leverages pretrained vision or vision-language models, but many existing methods use prompt learning or complex modeling to fit the data distribution, resulting in high training or inference cost and…

Computer Vision and Pattern Recognition · Computer Science 2026-02-03 Chaoran Xu , Chengkan Lv , Qiyu Chen , Feng Zhang , Zhengtao Zhang

Object detection is a critical field in computer vision focusing on accurately identifying and locating specific objects in images or videos. Traditional methods for object detection rely on large labeled training datasets for each object…

Computer Vision and Pattern Recognition · Computer Science 2024-08-27 Vishal Chudasama , Hiran Sarkar , Pankaj Wasnik , Vineeth N Balasubramanian , Jayateja Kalla

Few-shot dense retrieval (DR) aims to effectively generalize to novel search scenarios by learning a few samples. Despite its importance, there is little study on specialized datasets and standardized evaluation protocols. As a result,…

Computation and Language · Computer Science 2023-04-13 Si Sun , Yida Lu , Shi Yu , Xiangyang Li , Zhonghua Li , Zhao Cao , Zhiyuan Liu , Deiming Ye , Jie Bao

In industrial product quality assessment, it is essential to determine whether a product is defect-free and further analyze the severity of anomality. To this end, accurate defect segmentation on images of products provides an important…

Computer Vision and Pattern Recognition · Computer Science 2021-04-07 Dongyun Lin , Yanpeng Cao , Wenbing Zhu , Yiqun Li

Graph anomaly detection has long been an important problem in various domains pertaining to information security such as financial fraud, social spam and network intrusion. The majority of existing methods are performed in an unsupervised…

Machine Learning · Computer Science 2024-08-27 Xiongxiao Xu , Kaize Ding , Canyu Chen , Kai Shu
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